Preheat the oven to 350°F (175°C).

Line a baking sheet with aluminum foil and coat with olive oil.

Place salmon fillets on the prepared baking sheet.

Sprinkle salmon fillets with salt, pepper, turmeric, and paprika.

Bake in the preheated oven for 20 minutes, or until cooked through.

While the salmon bakes, heat olive oil in a pan over medium heat.

Sauté onion and diced green bell pepper until the onion is golden brown.

Add minced garlic, salt, pepper, and turmeric to the pan.

Cook for 5 minutes over medium-low heat.

Add chopped walnuts to the pan and stir well.

Mix in the dried barberries and pomegranate molasses.

Cook for an additional 2-3 minutes, stirring constantly.

Once the salmon is baked, top each fillet with the barberry-walnut mixture.

Serve immediately.